diff --git a/include/sdbus-c++/IConnection.h b/include/sdbus-c++/IConnection.h
old mode 100755
new mode 100644
diff --git a/include/sdbus-c++/TypeTraits.h b/include/sdbus-c++/TypeTraits.h
old mode 100755
new mode 100644
diff --git a/src/Connection.cpp b/src/Connection.cpp
old mode 100755
new mode 100644
diff --git a/src/Connection.h b/src/Connection.h
old mode 100755
new mode 100644